Hit US comedy show Brooklyn Nine-Nine airs the first episode of its fourth season tonight. The series parodies American police shows and in this season, the carefree but resourceful Detective Jake Peralta (Adam Samberg) and uptight Captain Ray Holt (Andre Braugher) try to adjust to life in new surroundings after being placed in the Witness Protection Programme in Florida. Crime boss Jimmy 'The Butcher' Figgis, who they were threatened by six months previously, is still at large, and the pair’s anonymity is soon compromised by a video. Bridesmaids’ Maya Rudolph guest stars as the cops’ sole contact, U.S. Marshal Karen.